<div id='header'>
    <div id='header_logo' class='grid_10 alpha'>
        <div class='innerContent'>
           logo
        </div>
    </div>
    <div id='nav' class='grid_16'>
        <div class='innerContent'>
            <coreNavigation id='menu' type='menu' maxDepth='0' ulClass='menu' />
        </div>
    </div>
</div>
<div class="clear"></div>